82：什么是流水句？怎样修复这种不分意群的句子？

Question 82: What is a fused sentence?    How do I fix a fused sentence, a run-on sentence, or a comma splice?

Answer: A fused sentence results when a writer puts no punctuation mark and no coordinating conjunction between independent clauses. The boys walked the girls ran. A fused sentence can also be called a run-on sentence.

If your sentence describes two characters performing two different actions separately, you need a comma. Another way to test is to ask yourself if you could separate your sentence into two distinct sentences without rearranging any of the words. If you can, you need a comma (and a conjunction if you don't already have one).

I studied all night, but my roommate slept.
I slept all night, but I should have been studying.

Note: The second "I" counts as a second character because you named it again. If you don't name the "I" the second time, you don't need a comma:

I slept all night but should have been studying.
Bob and Cathy studied for three hours and slept for five hours.


Note: Here you don't need a comma because you couldn't separate the sentence into two complete sentences without rearranging the words.

问题82：什么是流水句？怎样修复这种不分意群的句子？

回答：如果作者写句子的时候没有在独立分句中间加入标点符号或是连接词，就造成了流水句。例如：The boys walked the girls ran. 流水句英语里也叫run-on sentence。

如果句子是关于两个人分别做不同的动作，那么就应该用逗号。另一个检测的办法就是看是否可以不用做任何修改就把原来的句子分成两个单独的句子。如果可以的话，你就需要加一个逗号。另外，如果逗号连接的两个句子之间没有连接词的话，你还学要加一个连接词。
例如：I studied all night, but my roommate slept.

I slept all night, but I should have been studying.
注意: 第二个 "I" 因为被提倒了两遍而被视作另外一个人。 如果第二遍的时候不提到"I"的话, 也就不需要逗号： I slept all night but should have been studying.
Bob and Cathy studied for three hours and slept for five hours.

注意: 这里，你不需要加逗号因为你不能把该句不做任何改动而分成两个完整的句子。